Articles
PATH-COEFFICIENT ANALYSIS OF PYRTHRINS YIELD IN PYRETHRUM (CHRYSANTHEMUM CINERARIAEFOLIUM VIS)
Article number
188_12
Pages
111 – 116
Language
Abstract
Phenotypic correlation coefficients among several traits in pyrethrum have been reported.
Path-coefficient analysis was used to determine the interrelationships between the pyrethrins yield (g/plant), economically the most important trait in pyrethrum, and four of its component characters.
It was found that dry flower yield (g/plant) had the highest direct effect on pyrethrins yield followed by pyrethrins content (%) in the dry matter of the flowers.
Flowers/plant, though positively correlated with flower yield, exerted a negligible negative direct effect on pyrethrins yield.
Dry flower weight (g/100 flowers) also had a very small negative direct effect on pyrethrins yield.
It has been suggested that pyrethrins yield can be effectively improved by selection of plants high in flower number and pyrethrins content.
Path-coefficient analysis was used to determine the interrelationships between the pyrethrins yield (g/plant), economically the most important trait in pyrethrum, and four of its component characters.
It was found that dry flower yield (g/plant) had the highest direct effect on pyrethrins yield followed by pyrethrins content (%) in the dry matter of the flowers.
Flowers/plant, though positively correlated with flower yield, exerted a negligible negative direct effect on pyrethrins yield.
Dry flower weight (g/100 flowers) also had a very small negative direct effect on pyrethrins yield.
It has been suggested that pyrethrins yield can be effectively improved by selection of plants high in flower number and pyrethrins content.
Authors
B.K. Bhat, R.C. Menary
Keywords
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